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Side by Side Diff: src/ic/mips/handler-compiler-mips.cc

Issue 877343003: Fix register aliasing after r26306, r26275. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Remove comment Created 5 years, 10 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_MIPS 7 #if V8_TARGET_ARCH_MIPS
8 8
9 #include "src/ic/call-optimization.h" 9 #include "src/ic/call-optimization.h"
10 #include "src/ic/handler-compiler.h" 10 #include "src/ic/handler-compiler.h"
11 #include "src/ic/ic.h" 11 #include "src/ic/ic.h"
12 12
13 namespace v8 { 13 namespace v8 {
14 namespace internal { 14 namespace internal {
15 15
16 #define __ ACCESS_MASM(masm) 16 #define __ ACCESS_MASM(masm)
17 17
18 18
19 void NamedLoadHandlerCompiler::GenerateLoadViaGetter( 19 void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
20 MacroAssembler* masm, Handle<HeapType> type, Register receiver, 20 MacroAssembler* masm, Handle<HeapType> type, Register receiver,
21 Register holder, int accessor_index, int expected_arguments) { 21 Register holder, int accessor_index, int expected_arguments,
22 Register scratch) {
22 // ----------- S t a t e ------------- 23 // ----------- S t a t e -------------
23 // -- a0 : receiver 24 // -- a0 : receiver
24 // -- a2 : name 25 // -- a2 : name
25 // -- ra : return address 26 // -- ra : return address
26 // ----------------------------------- 27 // -----------------------------------
27 { 28 {
28 FrameScope scope(masm, StackFrame::INTERNAL); 29 FrameScope scope(masm, StackFrame::INTERNAL);
29 30
30 if (accessor_index >= 0) { 31 if (accessor_index >= 0) {
32 DCHECK(!holder.is(scratch));
33 DCHECK(!receiver.is(scratch));
31 // Call the JavaScript getter with the receiver on the stack. 34 // Call the JavaScript getter with the receiver on the stack.
32 if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) { 35 if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
33 // Swap in the global receiver. 36 // Swap in the global receiver.
34 __ lw(receiver, 37 __ lw(scratch,
35 FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); 38 FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
39 receiver = scratch;
36 } 40 }
37 __ push(receiver); 41 __ push(receiver);
38 ParameterCount actual(0); 42 ParameterCount actual(0);
39 ParameterCount expected(expected_arguments); 43 ParameterCount expected(expected_arguments);
40 __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_GETTER); 44 __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_GETTER);
41 __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, NullCallWrapper()); 45 __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, NullCallWrapper());
42 } else { 46 } else {
43 // If we generate a global code snippet for deoptimization only, remember 47 // If we generate a global code snippet for deoptimization only, remember
44 // the place to continue after deoptimization. 48 // the place to continue after deoptimization.
45 masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); 49 masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset());
46 } 50 }
47 51
48 // Restore context register. 52 // Restore context register.
49 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 53 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
50 } 54 }
51 __ Ret(); 55 __ Ret();
52 } 56 }
53 57
54 58
55 void NamedStoreHandlerCompiler::GenerateStoreViaSetter( 59 void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
56 MacroAssembler* masm, Handle<HeapType> type, Register receiver, 60 MacroAssembler* masm, Handle<HeapType> type, Register receiver,
57 Register holder, int accessor_index, int expected_arguments) { 61 Register holder, int accessor_index, int expected_arguments,
62 Register scratch) {
58 // ----------- S t a t e ------------- 63 // ----------- S t a t e -------------
59 // -- ra : return address 64 // -- ra : return address
60 // ----------------------------------- 65 // -----------------------------------
61 { 66 {
62 FrameScope scope(masm, StackFrame::INTERNAL); 67 FrameScope scope(masm, StackFrame::INTERNAL);
63 68
64 // Save value register, so we can restore it later. 69 // Save value register, so we can restore it later.
65 __ push(value()); 70 __ push(value());
66 71
67 if (accessor_index >= 0) { 72 if (accessor_index >= 0) {
73 DCHECK(!holder.is(scratch));
74 DCHECK(!receiver.is(scratch));
75 DCHECK(!value().is(scratch));
68 // Call the JavaScript setter with receiver and value on the stack. 76 // Call the JavaScript setter with receiver and value on the stack.
69 if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) { 77 if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
70 // Swap in the global receiver. 78 // Swap in the global receiver.
71 __ lw(receiver, 79 __ lw(scratch,
72 FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); 80 FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
81 receiver = scratch;
73 } 82 }
74 __ Push(receiver, value()); 83 __ Push(receiver, value());
75 ParameterCount actual(1); 84 ParameterCount actual(1);
76 ParameterCount expected(expected_arguments); 85 ParameterCount expected(expected_arguments);
77 __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_SETTER); 86 __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_SETTER);
78 __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, NullCallWrapper()); 87 __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, NullCallWrapper());
79 } else { 88 } else {
80 // If we generate a global code snippet for deoptimization only, remember 89 // If we generate a global code snippet for deoptimization only, remember
81 // the place to continue after deoptimization. 90 // the place to continue after deoptimization.
82 masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); 91 masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset());
(...skipping 641 matching lines...) Expand 10 before | Expand all | Expand 10 after
724 // Return the generated code. 733 // Return the generated code.
725 return GetCode(kind(), Code::NORMAL, name); 734 return GetCode(kind(), Code::NORMAL, name);
726 } 735 }
727 736
728 737
729 #undef __ 738 #undef __
730 } 739 }
731 } // namespace v8::internal 740 } // namespace v8::internal
732 741
733 #endif // V8_TARGET_ARCH_MIPS 742 #endif // V8_TARGET_ARCH_MIPS
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